Comparative study of NiTi orthodontic wires

F. M. Braz Fernandes, J. M. Cruz, R. C. A. Magalhaes

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Abstract

In this study, two superelastic NiTi orthodontic wires (0.46 x 0.64 mm(2)) were analyzed. The determination of phase transformation temperatures along with the identification of the predominant phase at room and intraoral temperatures were accomplished by DSC analysis. Superelastic behavior was analyzed through tensile tests. 3-point bending tests were performed on a model design which included brackets to compare wires' behavior: lower forces corresponding to Ormco wires' reverse phase transformation plateau when compared to Dentaurum were exhibited. Wire slippage inside the brackets and friction caused by wire-bracket-ligature combinations on bending and pulling tests, respectively, are also discussed. (C) 2014 The Authors. Published by Elsevier Ltd.

Original languageEnglish
Title of host publicationInternational Conference on Martensitic Transformations, ICOMAT-2014
EditorsJose San Juan, Angel López-Echarri, María L. Nó, Gabriel A. López
Place of PublicationAmterdam, Netherlands
PublisherELSEVIER SCIENCE BV
PagesS995-S998
Number of pages4
DOIs
Publication statusPublished - 2015
Event14th International Conference on Martensitic Transformations (ICOMAT) - Bilbao, Spain
Duration: 6 Jul 201411 Jul 2014

Publication series

NameMaterials Today: Proceedings
PublisherELSEVIER SCIENCE BV
Number3
Volume2
ISSN (Print)2214-7853

Conference

Conference14th International Conference on Martensitic Transformations (ICOMAT)
CountrySpain
CityBilbao
Period6/07/1411/07/14

Keywords

  • orthodontic wires
  • NiTi
  • superelasticity
  • modified 3-point bending test
  • DSC
  • LOAD-DEFLECTION CHARACTERISTICS
  • STAINLESS-STEEL
  • ARCHWIRES
  • FRICTION
  • BRACKETS

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